Rosette.



J S. STEWART.

ROSETTE.

APPLIUATIOII PILBD DEO. 23. 1901.

2 SHEETS-SHEET 1.

Patented Dec. 29, 1908.

afl/455954771755 1 wwe/wo l J. S. STEWART.

EOSETTE.

APPLIUATION FILED 12.20.23.190?.

908, 1 66. Patented Dee. 29, 1908.

2 SHEETS-SHEET 2.

I l3mm-laken lgw/O S 5m il lflfl l) STATES PATENT ).FlilClf..

ROSETTE min iii-n und usi-lui Improvements in lto- .si-tics', ol' which lhr lollo'u'inpr is a lull, clear, nnzl exact description.

My invention relates to appliances for cicctrhwiring und more especially to rosettes for ronduit wiring n'hcri.- the circuit wil-rs nrc run in inclosing pipes or conduits terminating ut outlet boxes al any desired point.

The present invention covers more. parl-icularlv a form of my generic invention embodied in niv applifntion Serial No. 401,932, which also includes a receptacle in its Spci'f-ific nslmvts.

The present invention is to be.. distinguished from my companion application Serial No. 407,641.1ilcd l'ierewith, in which a rosette more. nrticularly applicable to cleat. wiring is set orth.

ln all rosottes and similar appliances, the drop 'or extension lines have. considerable strains applied tl'iereto in use, and their connections with the rosette-s must be of such a strong and substantial character as to withstand all such strains. A common racticc for obtaining this result consists in orrning s knot in 4the extension cord which cooperates with a cavit)r in the rose-ttc.A This necessitetes a rather clums and awkward struc ture, and is alsounrc iable, because the knot is liable. to slip. By the present invention, l. aim to' provide a fastening of great security whichdoos not rely u on a knot in the drop or extension cord. Alt the same time, I provide a number oi' 'other fcaturrs,'particularly a very efficient insulatimr barrier between arts of opposite potential-l, particularly the hired or exposed connections. I also form Idripping jpws oi' suc-h a type that each individual strand oi the drop or extension cord is grasped in a iortuous path. I further providL` for so .holding the`strands or wires in place-that they nutormtticull)T fnll into alinement with the clamping jaws above inentioned. Those various features ,and functions are secured in addition to those forming part ol' and lbroadlystated in my companion up lient-ion above referred to.

r ilu druwings Figure l is a top or plan vii-.w of un outlet box having a rosette cuibodying my invention, the usual cover boing Specification of Letters Patent.

Application tiled December 23, 1907.

l removed.

l ol the smile. i

.parts removed ronr the box to expose the y 'I l und feinte ol .\o\r lnrh, lmvomveuted cer Patented Dec. 29, 1908.

Serial No. 407,6l2.

Fig. 2 is a vertical sectional view l* lg. .i is a view showing all the.

Fig. 4' is a top view of the bod)T of wiring.

Fig. 5 is a sido the rosette or a pliancc. View thereof. vice. Fig. 7 is a view similar to Fig. l, thc ca) or casing of the rosette boing removed.

lefcrrin to the drawings in whiclrlike parts are icsignatod by the same. reference silfn, l indient-cs the sections of a conduit pi `e -w rich are joined to the outlet box 2 by the usual nuts and bushings 3 which need not bo described.

4 and 5 designato the inwardly embossed ortions of thc outlet box which can be nocked out when desired to permit the connection of additional pipes.

6 indicates lugs formed by inwardly bent portions of the outlet box, which have threaded holes for fastening screws of the cover. All t-hesofeaturos are of the standard and well known construction, and constitute' no part of my invention.

8 designates the body of a form of rosette embodying the princi les of my invention. This bod .is or anized with n cap or casing 48 hter escri ed and having a lodge or shoulder 9 directed toward the open end of theoutlet box.

A feature'of the body' 8 which I regard as peculiarly characteristic is the provision of a comparatively slender elongated Jortion 11 enerally coaxial and symmetries. with the ody of the receptacle and extending in a directlon o o'sitcto the capor c 48. In practice, make this elongated portion .11 of a diameter slightly greater than tlie'lnset portions 4 and 5 of the outlet box, and recess the @at end faces slightly at 12 so as to just tit mcely over the inwardl embossed part 5 in the bottom plate. .Tho-length of tho elongated portion 'is just sufficient to brin the shoulder 9 near or on a level with the lug, of the outlet box.

22 `indicates the retaining device referred to, and which serves a very important purpose in the combination.4 This part extends across the open sido o( the. outlet box, and secures the rceptacle in place therein. In practice l form the retainingl device from sheet metal with a. central opemn 23 oi auch a size as to rcceive the bod)r 8 wit i the edges of the holding plate resting smily against the shoulder 9. At diametrical y opposite Fig, fi shows the retaining dc' points on this retainingv device or holding late, corresponding to the location of the ugs 6 ofthe-outlet box, there are integral ears 25. having their terminal ends separated by a distance corresponding to the internal diameter of the outlet box. These ears are designed to be passed beneath the lugs 6, in which relation they bear the holding plate downward against the shoulder 9 of the ro sette which 1s snugly anchored or locked in position by this simple engagement on ac count of the projection 11 which abuts aglainst the bottoni plate of the outlet box. T e resiliency of the holding plate is sufficient to hold the parts in place without any additional fastening devices, but I do not rely on this engagement to absolutely lock the rosette in place. The ends of the ears 25 have elongated slots or holes 28 which are directly beneath the holes of the lug 6.` When the cover 30 of the outlet box is secured into place, the usual screws pass downwardly through the lugs and through the elongated holes 28 forming an engagement therewith so secure as to prevent any inde 'endent movement of the holding plate wit its rosette. In practice, the slots 28 are formed by merely shearing thc ears 25 and bending down the edges formed into a V-shape. In this way, the Width of the hole or slot adjuste itself somewhat to the size of the screw used and binds tightly on the threads thereof at the engaging edges., M

The body or part 8 of the rosette has a flat upper face 32 to which are secured fiat plates 33 with screw terminals 34 for the drop or extension cord.

35 designates ears extendin from the plates 33 through suitab e openings in the liet -face 32. These ears arev extended alo side the elongated vportion 11 of the bloc or body being received in depressions or recesess therein. At their inner ends,

these ears are deflected at 16, 16', and have terminal screwsV 17, 17', for the enga ement of the circuit wires. The drop or ex ension lcord is e ged with the 'certain parts ofthe body 8 an with the plates 33, so as to secure all the functions mentioned in the reliminary art of the s` ecification. For t is purpose, provide a ari-ier or partition 40 integrally extend' vfrom the face 32 between the plates 33. his barrier has laterally olset ortions 42 about the middle thereof whic produce rentrant angles or ooves 43 at their junction with the body of tV e bar rier 40. In practice Iformthe grooves 43 very deepl in the face of the material, so that the e e or shoulder 44is left between each of sain? minal clip 33. At .their junction with the upper face 45 of the barrier or partition 40, t e grooves 43 are rounded over so that a sharp corner will not be left to abrade or injure the conductor. .46 designates holes exinwardly g grooves and the adjacent ter tending transversely 40 and terminating 1n grooves 43. A

I The cap or casin 48 of the rosette is particularly shown in 4ig. 2, and fits over' the body part 8 of the rosette, so as to wholly cover the various terminal parts and connections, together with the partition or barrier 40. In practice, I make the cap or casing 48 of circular outline corresponding to the form of the body 8, and having a rim 49` closely embracing said body around its outer circumference. The interior cavity of the ca or casing 48 may be oi any formV desire but I prefer to make this forma tr'ue surface of revolution, so that the ca will fit upon the rosette body in any angu ar relation in a plane normal to the axis of said surface of revolution when the cap is positioned onthe barrier 40. In order to secure this result, the barrier or partition 40 should be rounded off and cut away corresponding to the transverse sections of the cavity in the cap or casin A desirable outline for this purpose is t iat shown in' Fig. 5, it being understood that the various surfaces indicated by the reference characters()x are molded or formed concentric with the axis of the rosette body.

An important c iaracteristic of the cap 48 consistsin the provision of a surface 50 extending in a direction generally parallel' to through the partition close proximity to the the length of the grooves of passages 43, but

spaced apart therefrom a distance sufficient to receive a strand orconductor of the extension cord. 51 designates another surface at an angle to the surface() and which extends over the top surface 45 of the barrier 4or artition 40. In accordance with the rincip es above mentioned, both the suraces 50 and 51- may be made concentric or co-axial with the axis cf the cap. Each of these surfaces constitutes a clamping jaw or jaws to coperate with the grooves 43 and the surface 45 of the barrier 40, and closely engage or bind the drop or extension cord conductors in position. It will be observed that such action takes place on two lines at an angle to one another, so that each conductor or strand is bound at two points or' areas and in a tortuous ath. The surface 50 need not be long enoug to coperate with the length of the entire roove or passage 43, and in practice, I terminate this surface 50 in a radial plane 52 corresponding to the Iupper surfaces of the offsets 42 previously mentioned. Thisconstruction is necessary if the cavity of the cap is to be made'a surface of revolution.

' In use, the rosette is assembled within the outlet box 2 and connected to the circuit wires thereof in a manner which hasI been fully described in my companion application above referred to, and which, therefore, need not be repeated in this case. The drop orV lllr r.vtension cord vconductors are bared for a short distance, and pass through the holes 46, being finally connected to the terminal screws 34. [t will be observed that in case an unnecessarily large amount of wire is bai-ed that the vitreous walls of the holes 46 constitute an effective insulating medium for the conductors. Both conductors emerge from the holes 4o in close proximity to the grooves 43 in which they extend upward, boing finally folded over on to the face 45 of the barrier or partition 4U. relation. they are adapted to be engaged by the walls or surfaces 5() and 51 of thc cap which forni clamping or gripping jaws to engage. them in two zones or areas and in a tortinius path, as already described. virtue ol' this engagement, and also the tortuous path in which the conductors are passedlhrmxgh the holes 46, the drop or extension cord is held with very great securit sullicient to resist any strains or pulls which may he applied in use. Should the insulation be abraded from the strands or conductors in this connection, no likelihood of a ground or short-circuit is caused, because of the corner or shoulder 44 which effectually separates each. strand from the clip of opposite polarity.

l In combination with` an outlet box having an open side, a member having terminals, and comprising two parts of insulating material and formed to provide cooperatinfir gripping jaws for engaging the conductors o a circuit, and a retaining device separate from the cover of the box for positively holding said member in place within said box.

L?. In combination with an outlet box having an open side, a member having terminals, and comprisin two parts of insulating material and forme( to provide cooperating gripping jaws for engaging the conductors of a circuit in a tortuous path, and a retainin device directlv engaging one of the artso said member for positively holdingsaid member in place 'within the box.

3. ln combination with an outlet box having an open side, a bodj.r having an integral barrier or partition on its u'per side, terminal clips fastened to said liody at either side of said partition, a cap fitting over said partition and cooperating therewith to engage and bind circuit conductors in a tortuous path, and a retaining device en aging said cap to hohl said body in lace in t c box.

4. ln combination wit an outlet box havingT an open side, a body of insulating material having terminal clips thereon, a cap of insulating material fitting over said body and formed to cooperate with the body to grip circuit conductors in a tortuous path, and a retainingdevicc engaging said cap and exending across the open side of said outlet In this i 5. An electrical appliance comprising an insulating bod having terminals on its cxposed face an( havin an inte ral barrier or partition between sai termina s, a cap of insulating material having its interior surface a surface of revolution and cooperating with said barrier to engage circuit conductors, whereby said circuit conductors are engaged at whatever angular position said cap may occupy.

6. An electrical appliance comprising an insulatin body having terminal clips on its exposed ace and havin an integral partition or barrier between sait clips, said partition or barrier having transverse holes through which circuit conductors may extend into connection with said terminal clips, and also having ledges or shoulders between each conductor and the clip of opposite polarity, and a cap fitting over said partition or barrier and cooperating therewith to engage and bind the circuit conductors in place.

7. An electrical appliance comprising ari insulating body having terminal clips on its exposed face and having an integral partition or barrierbetween said clips, said partition or barrier having transverse holes through which circuitP conductors may extend into connection with said terminal clips, and also having ledges or shoulders between each conductor and the clip of opposite polarity, and a cap having its interior surface a surface of revolution and adapted to fit over said partition or barrier to bind the circuit conductors in place at whatever angular position said caps may occupy.

8. An electrical appliance comprising a bodv of insulating material and having a geneoally circular outline at all points, said body naving a partition or barrier on its exposed face, terminal clips on said face on opposite sides of said barrier, a cap havin an interior surface of revolution which is a apted to fit on said body, and cooperating with said barrier to bind circuit conductors into engagement therewith, said barrier havin a longitudinal outline corresponding to t ie longitudinal section of said surface of the cap, as and for the purpose set forth.

9. An electrical appliancefcomprising a ,4

body having terminal clips on its exposed face and having an integral partition or barrier vwith transversely extending shoulders 44, said partition or barrier extending upward at its middle portion beyond said shoulders, and a ca having an interior cavit of a Aform generally corres )ondin to sai up- 'wardly extcndin mid e portion of said barrier and adapte to cooperate therewith to engage circuit conductors in a tortuous path.

10. An electrical appliance com rising an insulatin body having terminal cli s on its exposed ace and having an integra barrier between said terminal clips, said barrier having transverse holes through which circuit conductors may be passed to connect with said terminal clips, and a ca interiorfy formed to engage and bind saici) conductors in proximit to said holes.

11. An e ectrieal appliance com rising an insulatin body having terminal c i s on its exposed ace and ha an integra barrier between said terminal clips, said barrier having transverse holes through which circuit conductors may be passed to connect with said terminal clips, and a cap having an interior surface of revolution to engage and bind said conductors on said barrier in proximity to said holes as and for the purpose set forth.

12. An electrical appliance comprising a body having termina clips on its exposed f face and having a partition or barrier between said terminal clips and extending up- Ward at its middle portion into the form of a cylindrical stud or protuberance, said protuberance having grooves 43 on opposite sides, and a cap interiorly formed wit side Walls to bind circuit conductors in said grooves and an inner surface to bind the conductor on the top surface of said stud or protuberance, as and for the pu ose set forth.

In Witness whereof, subscribe my signature, in the presence of two Witnesses.

JAMES S. STEWART. Witnesses:

WALDo M. CHAPIN, JAMES DAN'roNIo. 

